Medium sized regional AS here: I am looking at a fairly large drop in IX traffic charts for our ports that face the IX, updated every 60s, which directly corresponds in time with the beginning of the Youtube outage. (We are not big enough to have a direct, dedicated peering session with the Google/Youtube AS).
At any given time of day 4pm-11pm a huge percent of our traffic is Youtube (or netflix, or amazon video, or hulu, or similar).
At any given time of day 4pm-11pm a huge percent of our traffic is Youtube (or netflix, or amazon video, or hulu, or similar).